Emil peitsoh



(No Model.)

E. FRITSCH.

WHEAT CLEANING AND POLI$HING MACHINE. No. 335,220. Patented Feb. 2 .1886.

N. PETERS. Ptmwuthogn hsq Wnhin mn. DJL

ATENT Orrrcn.

EMIL FRITSCH, OF LEIPSIG, SAXONY, GERMANY.

WHEAT CLEANING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent N0. 335,220, dated February 2, 1886.

Application filed July 15, 1885. Serial No. 171,676.

To all whom it may concern.-

Beitknown that I, EMIL FRI'rsoH, of Leipsic, Saxony, Germany, have invented a new and Improved Vheat Cleaning and Polishing Machine, of which the following specification is a full, clear, and exact description.

This invention relates to an improved Wheat cleaning and polishing machine; and it consists in the elements of improvement hereinaftermore fully pointed out and elai med.

In the accompanying drawings, Figure I is a vertical central section of the machine. Fig. II is a top view of the same. Fig. III represents the stone and brush separate.

Upon an upright shaft, S, the runner J, carrying the millstone A, is attached. stone is made of any fine sandstone, porcelain, or any suitable artificial material, and is concave or dish-shaped at its upper face, its concavity being of conical form, as shown. Above this millstone A there is placed a stationary brush, B, the lower surface of which is convex, and corresponds to the conical surface of the millstone. The wires or fibers forming the brush are set together so close that the wheat cannot easily dodge in between the same. Through a central opening, D, in the brush the wheat is introduced upon the stone A, and when the latter is rotated the wheat passes outward-thatis, toward the circumference of the stone and up the inclined surface of the same. Being met and retained by the correspondingly shaped brush, the wheat is. during its passage,thoroughly cleaned and polished. The cleaned wheat falls over the edge of the millstone A, between a similarly-arranged millstone and brush situated directly beneath, to receive a second cleaning.

The millstones, brushes, and other parts of the machine are inclosed in a casing, H. The shaft S rests upon a lever, L, operated by a The mill- I (No model.) Patented in Italy May 18, 1885, XIX, 18,342.

screw-rod, .10, whereby the distance between the surface of the millstone and the brush may be regulated.

Below the millstones A horizontal plates E E are placed at a short distance above one an other. The lower plate has a central opening, forming the mouth of pipes F F,connected to upright flues F, in communication with a suctiOn-fan, P. The dust and other fine particles are drawn away from the wheat at the circumference of the plates E during its downward passage from the millstones A, and pass through pipes F into the flues F.

Through the casing H, directly in line with the open space of the plates E, perforations n. are made, covered by suitable rings,G, having corresponding perforations, whereby the size of the perforations n and the quantity of air passing through the same may be regulated.

Any wheat passing with the dust through the tubes F into the flues F will fall out of the open bottom of the latter. To prevent any of the wheat passing into the suction-fan, valves 1) may be arranged in the upper parts of the flues F.

I claim as my invention- 1. The combination of easing H with shaft S, stones A, brushes B, plates E, tubes F, flues F, and suction pan P, substantially as specified.

2. The combination of perforated casing H with shaft S, stones A, brushes B, plates E, tubes F, flues F, and sliding perforated rings G, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FMIL FRITSCH.

\Vitnesses:

EDMUND Baorr, OTTO GUNTHER. 

